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Chemistry

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Gerardo Glover

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3y ago
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Cards in this guide (9)
What does the H of a reaction represent

It represents the heat involved in a reaction.

What does a positive H tell about a reaction

The reaction is endothermic.

What can be said about a reaction with H 62.4 kJ mol and S 0.145 kJ mol K

it is spontaneous at 500 k

How does the entropy change in the reaction 2c3h6g 9o2g 6co2g 6h2og

The entropy increases

What reactions would have a decrease in entropy

anabolic reaction

What can be said about a reaction with H 620 kJmol and S -0.46 kJ molK

it can never be spontanious

How much energy is required to raise the temperature of 0.2 kg of aluminum from 15C to 18C

538 J

If 213 J raises a sample of water 8.2 C what is the mass of the water

6.2 g

What is an example that shows that the combustion of methane produces 802 kJmol of energy

The enthalpy of combustion is determined by calorimetry.

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